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Abstract

This article provides a detailed discussion on the factors involved in the selection of steels for austempering, including section thickness limitations of steel parts and modifications of austempering practice. The selection of steel for an austempered component is based on the processing characteristics of the heat treating equipment employed. It is also based on the hardenability and transformation characteristics of the steel alloy as indicated by time-temperature-transformation and isothermal-transformation diagrams. The article contains tables that compare the dimensional changes that occur in stabilizer bars as a result of oil quenching and tempering with those that resulted from austempering. It also discusses the production applications of austempering and the problems encountered in austempering together with their solutions.

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John R. Keough, Austempered Steel, Steel Heat Treating Fundamentals and Processes, Vol 4A, ASM Handbook, Edited By Jon L. Dossett, George E. Totten, ASM International, 2013, p 352–360, https://doi.org/10.31399/asm.hb.v04a.a0005810

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